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vfiekz [6]
3 years ago
13

Which of the following contains the lipid bilayer structure that allows for cells to be selectively permeable?

Biology
1 answer:
avanturin [10]3 years ago
3 0

It's cell membrane for sure.

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List and describe three factors that affect how quickly enzymes can work to catalyze reactions
Lilit [14]

Answer:

The correct answer is - temperature, pH, substrate concentration.

Explanation:

Various factors affect the rate of enzymatic reaction such as pH, temperature, substrate concentration, availability of activators or inhibitors in the reactions, and enzyme concentration.

Temperature: Temperature affects the rate of the enzyme-catalyzed reactions. Like most of the reactions with an increase in temperature rate of enzymatic reaction also rises up to a maximum level and then declines if the temperature continues to increase as enzyme denatures after a particular temperature.

pH: Similar to the temperature pH also increases the rate of reaction up to a maximum level and then declines the rate as every enzyme acts only at an optimum pH range.

Substrate concentration: If the substrate concentration is increased gradually while the concentration enzyme remains constant, the rate of reaction will increase until it reaches a maximum.

5 0
3 years ago
Your class went out to Government Canyon State Park, and each group had to measure the size and density of organisms in a 1m2 ar
user100 [1]

Answer:

  • A signifies quadrant sampling.

  • B signifies density.

  • C signifies percentage coverage as it is the average estimate of the area the species covers in a quadrant.

  • D signifies frequency as frequency = no of plots in which sample is found/total no of plots.

  • E signifies average density. As density = number of plants per square meter.

  • F signifies average percentage coverage

4 0
3 years ago
Select all the correct answers.
babymother [125]

Answer:

The answer is A.

Explanation:

Adaptive immunity recognizes antigens of viruses.

8 0
3 years ago
Ferns and moss plants grow from_________?
Vsevolod [243]

Answer:

mosses and ferns plants are two types of primitive plants both plants are non flowering plants

Explanation:

therefore both of them are seedless plant as well both moss and ferns under grow Alternatives of generations

4 0
3 years ago
PLEASE HELP
Rom4ik [11]

Answer:anser is b have a good one

Explanation:

3 0
4 years ago
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